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Lorenzo Fontana

If you’re running a Swarm Mode cluster or even a single Docker engine, you’ll end up asking this question: How do I keep track of all that’s happening? The answer is “not easily.” You need a few things to have a complete overview of stuff like: Number and status of containers If, where, and when […]

Spawning services across multiple Docker engines is a very cool thing, but those services need to connect each other and be found by public-facing nodes in order to be routed to users. A way to achieve that is to use NGINX as a reverse proxy by defining one or more public-facing nodes. These nodes are […]

One of the things I love about Docker, and also one of the things that enabled its success, is that the batteries are included. What do I mean? Basically, to get started with Docker, you can just install and use it. Nothing more is needed, and complex things like network, process, and filesystem isolation are […]

The purpose of this post is to show how powerful and flexible Docker Swarm can be when combined with standard UNIX tools to analyze data in a distributed fashion. To do this, let’s write a simple MapReduce implementation in bash/sh that uses Docker Swarm to schedule Map jobs on nodes across the cluster. “Let’s see […]